gnome-power-manager does not reflect change from AC power and charged state to battery power and discharging state

[jgolightly]

Binary package hint: gnome-power-manager

Using 9.10 Karmic, gnome-power-manager 2.28.1-0ubuntu1.

When booting on battery power, gnome-power-manager loads and correctly reflects battery use, charge level, and discharging state. When AC power is supplied, gnome-power-manager updates correctly to show AC use, charge level and charging state. At 100% charge, gnome-power-manager does not correctly update if AC power is disconnected to return to battery operation, and continues to show "Laptop battery is fully charged".

If I let the battery discharge for an hour or two and reconnect AC power, gnome-power-manager will correctly show AC power, charge level (from "100%" to, for instance, "18%" battery level) and charging state.

ProblemType: Bug
Architecture: i386
Date: Thu Nov 5 15:17:29 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
Package: gnome-power-manager 2.28.1-0ubuntu1
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: gnome-power-manager
Uname: Linux 2.6.31-14-generic i686

[jgolightly (jim-golightly)]

I was curious how gnome-power-manager would act if I unplugged AC power under 100% charge. I booted up on battery with around 55% battery charge and showing active discharge state, then plugged in AC power for around 10 seconds. It showed battery charging at 55% capacity. I then unplugged the AC adapter and it showed "Laptop battery fully charged."

[IKT (ikt)]

I am getting a similar experience on my acer aspire one.

[Jochen Kemnade (jochenkemnade)]

Could this be related to #384304?

[IKT (ikt)]

Not the same as 384304 suggests it doesn't think it's on battery at all, where as on my netbook for example it will charge the battery up, and be happy at 100% but then:

At 100% charge, gnome-power-manager does not correctly update if AC power is disconnected to return to battery operation, and continues to show "Laptop battery is fully charged".

[Fabio Marconi (fabiomarconi)]

from devkitpower.txt
state: fully-charged
line-power
    online: yes

does not correctly update if AC power is disconnected
probably dup of bug 410604

[Fabio Marconi (fabiomarconi)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 410604, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.